APA (7th ed.) Citation

M. Marguerite, S., & M. Bernarda, S. (1968). This is our valley (Revised edition.). Ginn and Company.

Chicago Style (17th ed.) Citation

M. Marguerite, Sister, and Sister M. Bernarda. This Is Our Valley. Revised edition. Boston: Ginn and Company, 1968.

MLA (8th ed.) Citation

M. Marguerite, Sister, and Sister M. Bernarda. This Is Our Valley. Revised edition. Ginn and Company, 1968.